Home / 765,386,457.60-1,056,559,801.36-514,636,191.20

Finding the Fourth Proportional to 765,386,457.60, 1,056,559,801.36 and 514,636,191.20

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Solution

The fourth proportional to 765,386,457.60, 1,056,559,801.36 and 514,636,191.20 is: 710,417,471.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,386,457.60 : 1,056,559,801.36 = 514,636,191.20 : x
  2. Step 2: Convert to fraction form
    765,386,457.60/1,056,559,801.36 = 514,636,191.20/x
  3. Step 3: Cross multiply
    765,386,457.60x = 1,056,559,801.36 × 514,636,191.20
  4. Step 4: Simplify right side
    765,386,457.60x = 543,743,911,946,938,944
  5. Step 5: Solve for x
    x = 543,743,911,946,938,944/765,386,457.60
  6. Step 6: Final answer
    x = 710,417,471.52

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Double scale
Find fourth proportional to 765,386,458.60, 1,056,559,802.74 and 514,636,192.20
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.